THESE ARE ALL 1'' THICK, 1 IS 5 1/4'' WIDE, 1 IS 4 7/8'' WIDE, AND THE BIGGEST ONE IS 6 3/4" WIDE. TOGETHER THEY WEIGH 12 POUNDS 10 OZS.  THEY CAN STACK UP MANY DIFFERENT WAYS AND ARE STEADY WHEN STACKED.  I WASHED THEM WITH A WIRE BRUSH, CLEAN HOT WATER AND SOAP.  SO THEY ARE CLEAN BUT STILL HAVE RUST PATINA, THAT EVERYONE SEAMS TO LIKE. I THOUGHT A COUPLE COATS OF A CLEAR SEALER WOULD MAKE THEM LOOK EVEN BETTER. PLEASE SEE ALL THE PICTURES TO HELP WITH THE DESCRIPTION.  GREAT INDUSTRIAL ART PCS. THANK YOU FOR LOOKING.